Iraqi insurgents wounded Gerald Cassidy in the deafening blast of a roadside bomb just outside Baghdad on Aug. 28, 2006. But it took more than a year for him to die from neglect by the Army that had sent him off to war. When Cassidy returned to the U.S. last April, the Army shipped him to a hospital in Fort Knox, Ky., to get treatment for the excruciating headaches that had accompanied him home. For five months, he made the rounds of Army medical personnel, who couldn't cure a pain that grew steadily worse. Unable to make room for him in...